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Schwinn / Shimano ???

Old 09-01-12, 09:17 PM
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mybeer
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Schwinn / Shimano ???

I am trying to figure out what trigger shifter my Moab has.
It is a mid to late 90s build as it came from Schwinn,
Ineed to replace or repair the TS for the rear derailer but have no info on what is on ther now.
Anyone have a suggestion or kno how to find this info ?
I have looked evidently not in th right places
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Old 09-01-12, 09:23 PM
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Pics?

You could look up the Shimano date codes from components and compare to codes here to determine year of bike:

http://www.vintage-trek.com/component_dates.htm#shimano

Then consult bikepedia to determine parts specs.
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Old 09-01-12, 10:59 PM
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Shimano parts are fairly generic. It doesn't matter that they're on a Schwinn- if there's a picture, we can identify it and then tell you how to get a compatible part.

As Les said, Bikepedia is a good source. However, there were several "Moab" bikes each year. For instance, here's the info on a 1998 cro-moly Moab 2:
http://www.bikepedia.com/QuickBike/B...%29&Type=bike#
Pictures help narrow down the search.
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Old 09-02-12, 03:18 AM
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First, what's wrong with it? A common problem is the grease hardens and gums up making the pawls not engage when downshifting (the thumb paddle). If this is the case, flush the internals with WD-40 or a spray lube--no need to disassemble.

If you do have to replace it, this is all you really need to determine:
- Number of rear sprockets (cogs)--match it.
- Whether the brake lever is integrated with the shifter; i.e. is there just one band holding the shifter and brake lever to the bar or can the shifter be removed independently?
- If the brake lever is integrated, determine if you have cantilever (requiring a short-pull lever) versus V-brakes or disc brakes (requiring a long-pull lever).
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Old 09-02-12, 09:15 AM
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This problem of improper shifting started after a child pushed real hard on the thumb paddle(RDR) when the bike was stationary, It slowly got worse over the years. Then one day when in a hurry I accidentally attached my bungee cord to the shift cable, I didn't go far before discovering that it just wouldn't shift. Well I stopped and found the problem but it must have kinked the cable or sleeve a little because the shifting problem was now suddenly worse, only shifts two gears at a time.
That got old pretty quick.
I dont' know if wd-40 will do the trick on this one but it's certainly worth a try.

Jeff the bike described at bikepedia sounds like mine, photo didn't come up.
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Old 09-02-12, 09:22 AM
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Two different things, or possibly both at once. Your cable for sure needs replacing, and your shifter itself may be busted (I've done similar). As has been said, all you really need to do is count the number of speeds on your rear wheel. I assume by trigger you mean rapid fire?
7 speed http://www.amazon.com/Shimano-Acera-...d+fire+shifter

8 speed http://www.amazon.com/Shimano-SL-M31...fire+shifter+8

9 speed http://www.amazon.com/Shimano-SL-M43...fire+shifter+9
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Old 09-02-12, 10:24 AM
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For 7 speed Shimano set ups, I remain a big fan of the Tourney trigger shifters, can find a set new, complete with cables and housings, for around $15 on the web. Its all I use on 7 speed MTBs. They also make a six speed version. Front is friction with this model, which to me, is a plus (allows for easy trimming). Indexed rear of course.
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Old 09-02-12, 10:27 AM
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For 7 speed Shimano set ups, I remain a big fan of the Tourney trigger shifters, can find a set new, complete with cables and housings, for around $15 on the web. Its all I use on 7 speed MTBs. They also make a six speed version. Front is friction with this model, which to me, is a plus (allows for easy trimming). Indexed rear of course. (SL-TX50)
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Old 09-02-12, 05:27 PM
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Thanks all for the suggestions, I intend to research the date just because I want to know and two I would like to replace this shifter with the same style if possible/practical.
Where will I find part numbers or date codes ?
Evidentally I have to take this apart cuz I don't see any exterior markings
The Acera looks like a good alternative if I cant find a original replacement.
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